scholarly journals Surface analysis of ureteral stent before and after implantation in the bodies of child patients

Urolithiasis ◽  
2020 ◽  
Author(s):  
Katarzyna Arkusz ◽  
Kamila Pasik ◽  
Andrzej Halinski ◽  
Adam Halinski
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Urinary Bladder ◽  
Tract Infection ◽  
Ureteral Stent ◽  
Ureteral Stents ◽  
Salt Deposition ◽  
Child Patients ◽  
Before And After ◽  
Dj Stent

Abstract The aim of this work was to determine which part of a double-J ureteral stent (DJ stents) showed the highest tendency to crystal, calculi, and biofilm deposition after ureterorenoscopic-lithotripsy procedure (URS-L) to treat calcium oxalate stones. Additionally, the mechanical strength and the stiffness of DJ stents were evaluated before and after exposure to urine. Obtained results indicated that the proximal (renal pelvis) and distal (urinary bladder) part is the most susceptible for post-URS-L fragments and urea salt deposition. Both, the outer and inner surfaces of the DJ ureteral stents were completely covered even after 7 days of implantation. Encrustation of DJ stents during a 31-day period results in reducing the Young’s modulus by 27–30%, which confirms the loss of DJ stent elasticity and increased probability of cracks or interruption. Performed analysis pointed to the need to use an antibacterial coating in the above-mentioned part of the ureteral stent to prolong its usage time and to prevent urinary tract infection.

scholarly journals Risk of Cancer after Lower Urinary Tract Infection: A Population-Based Cohort Study

2019 ◽  
Vol 16 (3) ◽  
pp. 390 ◽  
Author(s):  
Chia-Hung Huang ◽  
Ying-Hsiang Chou ◽  
Han-Wei Yeh ◽  
Jing-Yang Huang ◽  
Shun-Fa Yang ◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Cohort Study ◽  
Urinary Tract ◽  
Urinary Bladder ◽  
Tract Infection ◽  
Lower Urinary Tract ◽  
Population Based ◽  
Control Group ◽  
Lower Urinary Tract Infection ◽  
Lower Urinary

To investigate the association among lower urinary tract infection (UTI), the type and timing of antibiotic usage, and the subsequent risk of developing cancers, especially genitourinary cancers (GUC), in Taiwan. This retrospective population-based cohort study was conducted using 2009–2013 data from the Longitudinal Health Insurance Database. This study enrolled patients who were diagnosed with a UTI between 2010 and 2012. A 1:2 propensity score-matched control population without UTI served as the control group. Multivariate analysis with a multiple Cox regression model was applied to analyze the data. A total of 38,084 patients with UTI were included in the study group, and 76,168 participants without UTI were included in the control group. The result showed a higher hazard ratio of any cancer in both sexes with UTI (for males, adjusted hazard ratio (aHR) = 1.32; 95% confidence interval (CI) = 1.12–1.54; for females, aHR = 1.21; 95% CI = 1.08–1.35). Patients with UTI had a higher probability of developing new GUC than those without UTI. Moreover, the genital organs, kidney, and urinary bladder of men were significantly more affected than those of women with prior UTI. Furthermore, antibiotic treatment for more than 7 days associated the incidence of bladder cancer in men (7–13 days, aHR = 1.23, 95% CI = 0.50–3.02; >14 days, aHR = 2.73, CI = 1.32–5.64). In conclusion, UTI is significantly related to GUC and may serve as an early sign of GUC, especially in the male genital organs, prostate, kidney, and urinary bladder. During UTI treatment, physicians should cautiously prescribe antibiotics to patients.

scholarly journals National Imaging and Antibiotic Practice Patterns in Children Presenting With Urinary Tract Infection to Community Practices: Little Impact From the American Academy of Pediatrics Guidelines?

2019 ◽  
Vol 58 (11-12) ◽  
pp. 1302-1308
Author(s):  
Brian M. Inouye ◽  
Zachary R. Dionise ◽  
Ruiyang Jiang ◽  
Steven Wolf ◽  
Leigh Nicholl ◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Diagnostic Imaging ◽  
American Academy ◽  
Odds Ratio ◽  
Practice Patterns ◽  
American Academy Of Pediatrics ◽  
Antibiotic Utilization ◽  
Before And After

Our objective was to use community-based, national databases to evaluate diagnostic imaging and antibiotic prophylaxis practice patterns before and after the release of the 2011 American Academy of Pediatrics guidelines for acute febrile urinary tract infection. Using the National Ambulatory and Hospital Ambulatory Medical Care Surveys, urinary tract infection encounters were identified for patients aged 2 months to 18 years. Primary outcomes were utilization of antibiotics (as proxy for prophylaxis) and diagnostic imaging during encounters. Weighted multivariate logistic regression models were used to examine the association between time period (before and after 2011) and each of the primary outcomes. Among 8 588 035 weighted encounters, adjusting for covariates, there was insufficient evidence to suggest a difference between time periods for antibiotic utilization (odds ratio = 0.66, P = .12) or diagnostic imaging (odds ratio = 1.16, P = .56). Thus, we did not find evidence of changes in antibiotic utilization or diagnostic imaging practice patterns after the release of the 2011 American Academy of Pediatrics guidelines.

Characteristics of bacterial colonization and urinary tract infection after indwelling of double-J ureteral stent

Urology ◽  
2003 ◽  
Vol 62 (2) ◽  
pp. 214-217 ◽  
Author(s):  
Sung Hyun Paick ◽  
Hyoung Keun Park ◽  
Seung-June Oh ◽  
Hyeon Hoe Kim
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Bacterial Colonization ◽  
Ureteral Stent

scholarly journals URINARY BLADDER GOSSIPYBOMA

2006 ◽  
Vol 13 (01) ◽  
pp. 160-161
Author(s):  
MUHAMMAD IJAZ ◽  
BASHIR UR REHMAN ◽  
REHAN-E- KIBRIA
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Urinary Bladder ◽  
Tract Infection ◽  
Recurrent Uti ◽  
History Of

A 57 years old gentleman was brought with history of recurrent UTI (Urinary tract infection) of 01 yearduration. Following transvesical prostatectomy. UTI could not be controlled after using appropriate antibiotics. Allrelevant investigations were performed. His cystoscopic examination revealed retained gauze piece (12 inches ) inurinary bladder, which was retrieved.

URINARY TRACT INFECTION IN CHILDREN

PEDIATRICS ◽  
1969 ◽  
Vol 44 (5) ◽  
pp. 677-684
Author(s):  
Duncan E. Govan ◽  
John M. Palmer
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Hospital Admissions ◽  
Upper Urinary Tract ◽  
Cure Rate ◽  
Before And After ◽  
Tract Infections ◽  
Urethral Dilation

To study the influence of successful ureterovesicoplasty on incidence of recurrent urinary infection, two groups of infected children were compared in this regard before and after urologic evaluation. Of 280 new pediatric urologic hospital admissions, 55.6% had urinary tract infections. Sixty-six of these 156 infected children had vesicoureteral reflux. Bacteriologic localization of infection site was performed in both children with and without reflux at the time of diagnostic cystoscopy. Both groups were specifically treated with short-term antibiotic therapy and empiric urethral dilation. Operative vesicoureteroplasty was carried out in 62 children with reflux, with an overall cure rate of 83.8%. Distal urethral stenosis was not a contributing factor in this population nor did urethral caliber relate to the incidence of reflux. Only 3 of 35 children without reflux were found to have bacteriologically proved upper urinary tract infection. Similarly, only 32% of these children without reflux had clinical histories suggestive of recurrent pyelonephritis. In the children with reflux undergoing bacteriologic localization while infected, no nonrefluxing ureters were found infected, and only one third of the refluxing ureters so studied had proved upper urinary tract infection. Historical evidence for clinical pyelonephritis was present in 79% of the population with reflux; but, after successful cure of reflux, only 7% of these children continued to have pyelonephritic episodes. The long-term incidence of recurrent urinary tract infection was virtually identical, however, in the children undergoing successful antireflux surgery and the children without reflux following ureteral dilation. This relationship indicates that reflux plays little role in the etiology of bacteriunia but has a profound influence on urinary tract infection morbidity in children.

Urinary tract infection and antibiotic use around ureteral stent insertion for urolithiasis

2020 ◽  
Vol 39 (11) ◽  
pp. 2077-2083 ◽  
Author(s):  
Bérénice Souhail ◽  
Patrick Charlot ◽  
Gilles Deroudilhe ◽  
Yves Coblentz ◽  
Gregory Pierquet ◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Antibiotic Use ◽  
Ureteral Stent ◽  
Stent Insertion

scholarly journals Uropathogenic Escherichia coli-Induced Inflammation Alters Mouse Urinary Bladder Contraction via an Interleukin-6-Activated Inducible Nitric Oxide Synthase-Related Pathway

2009 ◽  
Vol 77 (8) ◽  
pp. 3312-3319 ◽  
Author(s):  
Te I. Weng ◽  
Hsiao Yi Wu ◽  
Pei Ying Lin ◽  
Shing Hwa Liu
Keyword(s):  
Nitric Oxide ◽  
Escherichia Coli ◽  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Urinary Bladder ◽  
Tract Infection ◽  
Interleukin 6 ◽  
Electrical Field Stimulation ◽  
E Coli

ABSTRACT Escherichia coli is the most common cause of urinary tract infection. Elevated blood and urine interleukin-6 (IL-6) levels have been shown in inflammatory urinary tract diseases. The role of IL-6 in mediating the urodynamic dysfunction in response to E. coli-induced urinary tract infection has not yet been fully elucidated. In this study, we investigated the role of IL-6 in the nitric oxide (NO)-triggered alteration of contractile responses in the urinary bladder under an E. coli-induced inflammatory condition. The electrical field stimulation (EFS)-evoked contractions of the isolated detrusor strips, and immunoblotting for detecting protein expression in the bladders was measured short term (1 h) or long term (6 or 24 h) after intraperitoneal injection of E. coli endotoxin (lipopolysaccharide [LPS]) or intravesical instillation of human pyelonephritogenic E. coli-J96 (O4:K6) strain or LPS into mice. IL-6 and NO productions were increased in the urinary bladders of mice 1 to 24 h after LPS or E. coli-J96 treatment. Inducible NO synthase (iNOS) expression and protein kinase C (PKC) activation and EFS-evoked detrusor contractions were increased in the bladders at 6 h after LPS or E. coli-J96 treatment, which could be reversed by anti-IL-6 antibody and iNOS inhibitor aminoguanidine. At 1 h after LPS administration, bladder NO generation, endothelial NOS expression, and EFS-evoked detrusor contractions were effectively increased, whereas anti-IL-6 antibody could not reverse these LPS-induced responses. These results indicate that IL-6 may play an important role in the iNOS/NO-triggered PKC-activated contractile response in urinary bladder during E. coli or LPS-induced inflammation.

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